Effect of primary intermetallic particles on surface microstructure and appearance of aluminium extrusions

Zhu, H.L., Zhang, X.Q., Couper, M.J. and Dahle, A.K. (2009) Effect of primary intermetallic particles on surface microstructure and appearance of aluminium extrusions. Materials Chemistry and Physics, 113 1: 401-406. doi:10.1016/j.matchemphys.2008.07.109


Author Zhu, H.L.
Zhang, X.Q.
Couper, M.J.
Dahle, A.K.
Title Effect of primary intermetallic particles on surface microstructure and appearance of aluminium extrusions
Journal name Materials Chemistry and Physics   Check publisher's open access policy
ISSN 0254-0584
Publication date 2009-01-15
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.matchemphys.2008.07.109
Volume 113
Issue 1
Start page 401
End page 406
Total pages 6
Place of publication Lausanne, Switzerland
Publisher Elsevier SA
Language eng
Subject C1
8612 Fabricated Metal Products
0912 Materials Engineering
091207 Metals and Alloy Materials
Abstract Different amounts of coarse intermetallic particles were produced in an aluminium alloy by variations of the iron content. Microstructural examination of the extrusion surface shows that Fe-rich intermetallic particles reduce the grain size, randomize the texture, retard the recrystallization process and decrease the difference in the fraction of high-angle grain boundaries. After alkaline etching, the primary intermetallic particles decrease the surface gloss and its variation on the same extrusion surface, reducing the tendency for streaking defects. Copyright © 2008 Elsevier B.V
Keyword Aluminium alloy
Etching
Defects
Q-Index Code C1
Q-Index Status Provisional Code
Additional Notes Available online 5 September 2008

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Mechanical & Mining Engineering Publications
 
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Created: Thu, 03 Sep 2009, 19:01:43 EST by Mr Andrew Martlew on behalf of School of Mechanical and Mining Engineering